Finding the Fourth Proportional to 2,672.54, 3,688.00 and 1,553.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,672.54 : 3,688.00 = 1,553.43 : x
2. Step 2: Convert to fraction form
   2,672.54/3,688.00 = 1,553.43/x
3. Step 3: Cross multiply
   2,672.54x = 3,688.00 × 1,553.43
4. Step 4: Simplify right side
   2,672.54x = 5,729,023.63
5. Step 5: Solve for x
   x = 5,729,023.63/2,672.54
6. Step 6: Final answer
   x = 2,143.66